128
votes
Accepted
What does Matroska have which WebM doesn't, that made the differentiation necessary?
necessitated "christening" a new format rather than just saying "WebM = Matroska with a restricted set of codecs used"?
That's really exactly what WebM is – not a new format, just a subset of ...
126
votes
Accepted
Downloading m3u8 videos
Get FFmpeg, then you can download your video with this command:
ffmpeg -protocol_whitelist file,http,https,tcp,tls,crypto -i "http://s6.vidshare.tv/hls/...
- 1,952
54
votes
Accepted
Download video from Microsoft Stream
Have a look at this project on github. Its called destreamer and basically does what you want. Depends on your University, you can find a version customized with the specific automated login for your ...
- 656
26
votes
Capture RTSP stream from IP Camera and store
If I follow your question correctly, why don't you try the following command on a Linux system (RPi):
ffmpeg -i rtsp://192.168.0.21:554/mpeg4 -vcodec copy -acodec copy -map 0 -f segment -segment_time ...
- 401
25
votes
Accepted
Can YouTube (e.g.) send a video file once and multiple users stream it?
YouTube sends a separate copy to each user. It's pretty much the only option available over the Internet.
is there any way through, apart from P2P, in which the ISP handles the parallelism or ...
- 465k
19
votes
Accepted
Computer won't play any online video until I reboot
RESOLVED
I had the same issue.
Put the Win10 to sleep. After waking up UTube or online videos did not play. I could browse in the timeline in the Utube video and showed up the thumbprint of the xy ...
- 206
13
votes
Creating MP4 videos ready for HTTP streaming
You can simply convert a non-streamable AVI or MP4, also without re-encoding everything, by doing this:
ffmpeg -i INPUT.mp4 -c copy -movflags faststart STREAMABLE_OUTPUT.mp4
There's no need to re-...
- 131
12
votes
using a good streaming mp4, Output file #0 does not contain any stream
You forgot the -i to indicate which file is an input. Change your command to:
ffmpeg -i MAH00107.MP4 -movflags faststart outputfile.mp4
- 60.6k
12
votes
What does Matroska have which WebM doesn't, that made the differentiation necessary?
For clarity, simplicity and standardization. Matroska supports hundreds of codecs. WebM supports 1 video and 1 audio (or is there more now?). So if I (or a computer program) ask “can you play webm” ...
- 3,753
11
votes
How do I find the video stream URL of ONVIF cameras manually?
According to the ONVIF Core Specification, an ONVIF-compliant device has its device management entry point fixed to http://${HOST}:${PORT}/onvif/device_service.
This endpoint is used for device ...
- 2,242
9
votes
Accepted
Create video from images and audio with varying image durations using FFMPEG?
Basic template is
ffmpeg -y \
-loop 1 -t 1 -i a1.jpg \
-loop 1 -t 1 -i a2.jpg \
-loop 1 -t 4 -i a3.jpg \
-loop 1 -t 1 -i a4.png \
-loop 1 -i a5.png \
-i audio.mp3 \
-filter_complex "...
- 37.1k
8
votes
How to record streams with Ace Player HD?
Click in the View menu of the Ace Player
Go to Advanced controls (once you click, then advanced controls must appear in the left lower corner).
Click on the record button.
You can find the recorded ...
- 181
8
votes
Can YouTube (e.g.) send a video file once and multiple users stream it?
Consider that if three people are viewing the same 50 minute-long video, one client might be at the beginning, another the middle and a third at the end. One could even decide to backtrack 15 minutes ...
- 31.7k
7
votes
Accepted
Streaming Media From Inside HTML Pages, by Example
How do streaming media players, running inside HTML pages and served by HTML servers, establish streaming (RTSP, etc.) connections with
streaming media servers (serving RTSP requests)?
Common ...
6
votes
Can YouTube (e.g.) send a video file once and multiple users stream it?
The current best solution is brute force, and local proxy servers distributed around the world (CDN = Content Delivery Network).
Multicast (https://en.wikipedia.org/wiki/IP_multicast) technically ...
- 5,980
5
votes
why is default audio volume always at 100%
Firefox
( NOTE: Works for HTML5 video)
1:Load about:config in the browser's address bar.
2:Confirm that you will be careful if this is the first time you open the configuration screen.
3:Search for ...
- 51
5
votes
Computer won't play any online video until I reboot
Solved mine on Windows 10 by doing this:
In Task Manager go to the services and restart services with name;
Audiosrv
AudioEndpointBuilder
- 51
5
votes
Ffmpeg how to limit input fps
Use the -re input option:
-re (input)
Read input at native frame rate. Mainly used to simulate a grab device, or live input stream (e.g. when reading from a file). Should not be used with actual grab ...
- 230k
4
votes
Accepted
Can I mux H.265 into FLV by force?
What is codec ID? Is it an FLV-specific marker to identify various stream formats?
Yes. Read the FLV file specification for more info and see page 8 for the video data part of the bitstream format.
...
- 230k
4
votes
Accepted
Create video from a growing image sequence using FFMPEG
Thanks to slhck, I managed to come up with a C# script which continuously passes files to the stdin of ffmpeg as they get created, which can be cancelled by pressing any key or when the specified end ...
- 41
4
votes
Accepted
How to watch a uTorrent download that's still in progress?
In μTorrent, click Options on the menu bar.
With the Options menu laid out, while holding down Shift and F2, select Preferences. This is necessary to make some hidden flags visible.
Go the the ...
- 24.8k
4
votes
Accepted
How to efficiently create a best-palette gif from a video portion straight from the web
The problem can be easily solved by using a filtergraph with multiple chains, which allows us to perform the seek/download/filter just once and process it in multiple ways. The seeked/filtered stream ...
- 1,599
4
votes
How do I stop Netflix from losing sync between audio and video?
I was able to fix this by going to “Control Panel -> Sound” then double-clicking my speakers from the list, then clicking the advanced tab, and unchecking “Allow applications to take exclusive control ...
- 920
4
votes
Accepted
Creating an MP4 file that is tolerant to sudden failure during encoding
This isn't possible with a regular MP4 as the metadata is required to play the file, and the metadata is held in memory while the file is being constructed. Once all media has been processed, the ...
- 37.1k
4
votes
Cannot play video stream from FFMPEG to VLC
Add a packet size on both server (ffmpeg) and client (vlc) sides;
in ffmpeg:
>ffmpeg -re -i "path/to/my/video.mp4" -vcodec libx264 -f mpegts udp://127.0.0.1:1234?pkt_size=1316
in vlc:
&...
- 471
3
votes
How much bandwith is required to stream 1080p?
I was able to calculate the bandwidth and storage for a 1080P video (with additional parameters) on this website:
http://stardot.com/bandwidth-and-storage-calculator
H.264 compressed 1080P HD @ 30 ...
- 131
3
votes
FFMPEG command to stream video to a Multicast address
the '-re' flag is applied to input not output,
your command won't work as you have it listed.
you have your ttl set to 1,
that will stop you at the first router,
bump it up and see what happens.
...
- 131
3
votes
FFMPEG command to stream video to a Multicast address
Full range of multicast addresses is from 224.0.0.0 to 239.255.255.255
After running the FFmpeg command goto any PC in the same network use this in VLC
udp://@[IP]:[port]
- 141
Only top scored, non community-wiki answers of a minimum length are eligible